The US president has tasked his aides with getting him out of Washington DC and in front of voters as much as possible in the run-up to the November election.

Mr Trump’s 40 days on the road between August 1 to November 6 will make him the “most aggressive campaigner in recent presidential history”, according to a person familiar with his thinking.

Mr Bush, the former Republican president, spent 33 days travelling in each of his two mid-term election campaigns while Mr Obama spent 36 and around 22 days in each.

The campaign blitz is the clearest sign yet that Mr Trump believes his personal charisma and record in office can help swing races in favour of the Republican Party.

However it comes with political risks, leaving the US president more politically vulnerable should the widely anticipated ‘blue wave’ of Democratic support come to pass at the ballot box.

The mid-terms, which take place two years after every presidential election, see votes for all House of Representatives seats and a third of Senate seats, as well as races for statewide governors.

Sources close to the US president spelled out their mid-terms strategy on Tuesday and made clear Mr Trump’s determination to hit the campaign trail.

“The president’s objective this fall is to get more support in Congress so that he can keep winning on behalf of the American people. This means an ambitious campaign schedule unlike any previous president in recent history,” a source familiar with his thinking said.

Donald Trump speaks during a rally in Wilkes-Barre, Pennsylvania in August 2018Credit:
Victor J. Blue/Bloomberg

Mr Trump will hold at least eight rallies and 16 fund-raisers in up to 15 US states in the coming weeks, according to a source.

North Dakota, South Dakota, Montana, Nevada, Kentucky and Tennessee are all expected to be visited, with other states likely to be added.

Sources said that Mr Trump believes he can turn out the unusual coalition of supporters, which included traditional Democrat voters, that swept him into the White House in 2016.

They also said the US president was helping secure a record number of donations for his party and defended his strategy of holding rallies, saying it would drive up new voters.

The sources defined what success would look like for Mr Trump: Adding seats in the Senate, where Republicans hold 51 seats and Democrats 49; holding the Republican majority in the House of Representatives; and doing well in governor races.

However they warned that the president was fighting against “history”, noting that opposition parties have gained seats in every mid-term election since the US civil war except for two: 1934 and 2002.